KÉRASTASE Nutritive Hydrating Scalp Serum 90 ml — Niacinamide + Vitamins, Fast-Absorbing Moisturiser

KÉRASTASE Nutritive Hydrating Scalp Serum is a lightweight, fast-absorbing treatment designed to moisturize and soothe dry scalps while supporting overall scalp comfort and hair vitality.

This concentrated serum targets dryness at the roots with a blend of niacinamide, vitamins and plant-based proteins to deliver immediate hydration without leaving a greasy residue. Formulated to be applied directly to a dry or towel-dried scalp, it absorbs quickly so you can continue styling; regular use helps maintain balanced scalp moisture and supports hair that looks and feels healthier. The 90 ml pump bottle is sized for daily or on-demand application and intended to slot smoothly into an existing haircare routine.

How does this serum relieve a dry, uncomfortable scalp?

The formula combines niacinamide, plant proteins and nourishing vitamins to restore the scalp’s immediate moisture levels and reduce sensations of tightness. It works on contact to hydrate skin at the roots while protecting the scalp’s natural moisture barrier for longer-lasting comfort.

• Niacinamide locks in moisture and helps rebalance the scalp environment.
• Plant-based proteins deliver nutrients that support hair fiber resilience.
• Light, fast-absorbing texture avoids buildup and greasiness.
• Instant hydration reduces visible dryness and discomfort.

When and how should I apply the serum for best results?

Use the serum on a dry or towel-dried scalp, concentrating on areas that feel tight or flaky. Apply four doses for an optimal session, gently massage into the roots to encourage absorption, and leave it in—no rinsing needed—so the active ingredients can work throughout the day or overnight.

• Apply directly to the scalp from the pump bottle for targeted delivery.
• Massage briefly to distribute product and stimulate circulation.
• Recommended routine: daytime use or paired with a night serum for intensive care.
• Do not rinse; style as usual after application.

Will this serum make my hair oily or weigh it down?

No — the serum has a lightweight, non-greasy formulation that absorbs quickly into the scalp rather than coating hair strands. It’s intended to nourish the skin of the scalp and preserve hair movement, making it suitable for most hair types where scalp hydration is the priority.

• Fast-absorbing texture minimizes residue on hair shafts.
• Balanced formula focuses on scalp rather than strand conditioning.
• Compatible with styling products and heat protectants.
• Daily or on-demand dosing depending on dryness severity.

How does this serum fit into a wider scalp and haircare routine?

The Nutritive Hydrating Scalp Serum complements Cleansing and Mask steps by addressing root moisture specifically. For a fuller program, use after washing on a towel-dried scalp or as a top-up during the day; combine with a heat protectant and the 8H Magic Night Serum for round-the-clock care and improved scalp comfort.

• Use after shampooing to lock in moisture at the roots.
• Pair with KÉRASTASE Nutritive treatments for hair fiber nutrition.
• Apply alongside heat protectants before styling for daily protection.
• Integrate a night serum for overnight restorative benefit.

Who is this for? The KÉRASTASE Nutritive Hydrating Scalp Serum is aimed at anyone experiencing scalp dryness, tightness or occasional discomfort who wants a fast-absorbing, non-greasy solution. It’s appropriate for those who already follow a haircare routine and need a targeted product to restore scalp hydration, as well as first-time users seeking a premium serum to maintain scalp health alongside nourishing treatments for the hair fiber.

Ingredients

Aqua / Water, Glycerin, Citric Acid, Polyquaternium-37, Paraffinum Liquidum / Mineral Oil, Amodimethicone, Phenoxyethanol, Polysorbate 20, Quaternium-87, Stearyl Alcohol, Behentrimonium Chloride, Panthenol, Niacinamide, Ascorbyl Glucoside, Butylene Glycol, Propylene Glycol, Candelilla Cera / Candelilla Wax, Ppg-1 Trideceth-6, Chlorhexidine Digluconate, Isopropyl Alcohol, Trideceth-6, Acrylates Copolymer, Sorbitan Oleate, Polyquaternium-11, Linalool, Hydrolyzed Wheat Protein, 2-Oleamido-1,3-Octadecanediol, Hydroxycitronellal, Benzyl Salicylate, Hydrolyzed Corn Protein, Hydrolyzed Soy Protein, Cetrimonium Chloride, Benzyl Alcohol, Hexyl Cinnamal, Citronellol, Iris Florentina Root Extract, Alpha-Isomethyl Ionone, Coumarin, Limonene, Parfum / Fragrance.